In the upper right corner of the file view, click to open the file editor.

On the Edit file tab, make any changes you need to the file.

Above the new content, click Preview changes.

At the bottom of the page, type a short, meaningful commit message that describes the change you made to the file. You can attribute the commit to more than one author in the commit message. For more information, see "Creating a commit with multiple co-authors."

Below the commit message fields, click the email address drop-down menu and choose a Git author email address. Only verified email addresses appear in this drop-down menu. If you enabled email address privacy, then username@users.noreply.github.com is the default commit author email address. For more information, see "About commit email addresses."

Below the commit message fields, decide whether to add your commit to the current branch or to a new branch. If your current branch is master, you should choose to create a new branch for your commit and then create a pull request.